Allhallows-on-Sea to Grain (south) 4A01
Summary management approach
Maintain defences in short term but with a long term goal of managed realignment subject to appraisal
Generic approach assigned to this unit
Management approaches depend on funding and relevant approvals and permissions. Adaptation to coastal change may be needed. If defences are present, some risk from flooding, erosion or ground instability may remain.
Time periods (short (0 to 20 years), medium (20 to 50 years) and long (50 to 100)) are approximate and do not signify precise dates of management transitions.
0 to 20 years (2005 to 2025)
HL3Hold the lineRepair not replace
Where protection is currently provided by coastal defence structures that might be maintained or repaired if funding allows, but not replaced if they fail or reach the end of their design life.
20 to 50 years (2025 to 2055)
MR1Managed realignmentSet back defence
Where the intention is to defend elsewhere in flood plain inland from present shoreline or allow erosion/recession to a defined alignment. New defences might be constructed at that new location if needed. This may involve the creation of inter-tidal habitat.
50 to 100 years (2055 to 2105)
MR1Managed realignmentSet back defence
Where the intention is to defend elsewhere in flood plain inland from present shoreline or allow erosion/recession to a defined alignment. New defences might be constructed at that new location if needed. This may involve the creation of inter-tidal habitat.
Neighbouring units
The following units are within 1km of this one:
Protected sites
This area of coastline is in or near 2 special protection areas.
Data last updated: 2024-04-17
View Special Protection Area on the Data Services PlatformThis area of coastline is not in or near an area of outstanding natural beauty.
Data last updated: 2024-06-29
View Area of Outstanding Natural Beauty on the Data Services PlatformThis area of coastline is in or near a special conservation area.
Data last updated: 2024-04-17
View Special Area of Conservation on the Data Services PlatformThis area of coastline is in or near 2 ramsar wetland areas.
Data last updated: 2024-04-03
View Ramsar Site on the Data Services PlatformThere are 3 scheduled monuments near this area of coastline.
Data last updated: 2024-04-03
View Scheduled Monument on the Data Services PlatformThis area of coastline is not in or near a local nature reserve.
Data last updated: 2024-06-29
View Local Nature Reserve on the Data Services PlatformThere are 2 sites of special scientific interest near this area of coastline.
Data last updated: 2024-07-26
View Site of Special Scientific Interest on the Data Services PlatformThis area of coastline is not in or near a national nature reserve.
Data last updated: 2024-06-29
View National Nature Reserve on the Data Services PlatformThere are 2 marine conservation zones near this area of coastline.
Data last updated: 2024-04-03
View Marine Conservation Zone on the Data Services PlatformActions for this unit
All actions are subject to funding and approval, often by other parties than the Lead Organisation shown.
| Reference Number | Action Description | Action Lead Organisation | Action Progress Status | Priority |
|---|---|---|---|---|
| 1.2 | Undertake Grain and Allhallows Marshes Realignment Study to investigate the Managed Realignment approach and set-back defences, to determine area of acceptable modification of freshwater habitat, establish impact on groundwater levels, and survey heritage features). The study should help identify the likely timing, impacts and opportuntiies of Managed Realignment. | Environment Agency | Not yet started | Medium-high |
| 1.3 | Engage with affected parties to enable adaptation to the change in coastline as long-term management intent and triggers for intervention are established. This includes discussion of ownership and SMP management implementation with owners of the seawalls. | Medway Council | Not yet started | Medium-high |
| 1.1 | Establish locations for compensatory habitat (based on sites in Thames Estuary 2100 and Medway Estuary and Swale Flood and Coastal Erosion Risk Management Strategy (MEASS) ) required as a result of potential loss of designated freshwater habitat in areas of managed realignment. | Environment Agency | Progressing | Medium |
Download SMP documents
The information on this website represents the current SMP management approaches adopted by the local authorities within its area, and current actions needed to deliver them. These management approaches have been approved by the Environment Agency under its Strategic Overview for coastal flood and erosion risk management and are considered to be local policy.
The documents below provide the full SMP adopted locally and approved by the Environment Agency at the time of publication. Some of the information has changed in response to new government policy, new evidence or new work identified.
Data on this page
Main report
Appendices
- Appendix A- SMP Development
- Appendix B- Stakeholder Engagement
- Appendix C- Baseline Process Understanding
- Appendix C- No Active Intervention Maps
- Appendix D- Designations Maps
- Appendix D- Strategic Environmental Assessment
- Appendix E- Issues and Objectives Evaluation
- Appendix F- Initial Policy Appraisal and Scenario Development
- Appendix G- Scenario Testing
- Appendix H- Economic and Sensitivity Testing
- Appendix I- Metadatabase
- Appendix J- Habitats Regulations Assessment
- Appendix K- Retrospective Water Framework Directive Assessment